The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A house carved into a rock in the 1940s.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

An homage to everyone's favorite prehistoric cartoon family.

See massive fossils that are over 200 million years old in northeastern Arizona.

A self-built castle made by a mysterious man.

Rippling sand dunes frozen in the Arizona rock.

A giant donut stands as a popular symbol of Los Angeles iconography.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The last of its kind in the country.

World-famous, Pink's still manages to keep its prized cult fetish status.

This former stomping grounds of the most eminent astronomers of the early 20th century.

The private clubhouse for the members of the Academy of Magical Arts.

Behind legendary Meltdown Comics is a marker for an engineered musical roadway of the Tehachapi, the great road builders of Kcymaerxthaere.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This glamorous old building is said to have inspired the Tower of Terror.

World's largest collection of serial killer artwork and other macabre exhibits.